It is recommended that readers call ahead to confirm that programs have not been canceled or otherwise changed since press time because of recent news events.

Concerts BORDERS MUSIC -- 7:30 p.m. tomorrow. Steve Key performs music from his CD "Scatter Seeds." Borders, 3304-A Crain Hwy., Waldorf. Free. 301-705-6672.

CAVALIER CHORUS -- 7 p.m. Wednesday. Students from Calvert High present a concert spanning classical to jazz and pop. Calvert High School, 600 Dares Beach Rd., Prince Frederick. $2. 410-535-7351 or 410-535-7330.

Dance SQUARE DANCING -- 7:30-9:30 p.m. every Friday. Dances are held by square dance club the Southern Merry-Landers, at John Hanson Middle School, 12350 Vivian Adams Rd., Waldorf. $5.50; members, $4. 301-893-1974.

CWDA MONTHLY DANCE -- 7:30 p.m.-midnight Saturday. The Southern Maryland Country Western Dance Association's monthly smoke-free dance. Dance lessons offered. Brandywine Firehouse, 14201 Brandywine Rd., Brandywine. $10; members, $8; children, $4. 301-843-3476.

Exhibits "THE NATURE OF NATURE" -- 11 a.m.-5 p.m. weekdays, noon-3 p.m. Saturdays, through Nov. 23. Sixteen artists present landscape paintings, some with a surreal twist. Boyden Gallery, St. Mary's College of Maryland, 18952 E. Fisher Rd, St. Mary's City. Free. 240-895-4246.

BYGLER AND RUSSELL -- 11 a.m.-6 p.m. today-Saturday, 11 a.m.-3 p.m. Sunday. "Oil and Water Do Mix," an exhibit of oils by Elizabeth Bygler, and watercolors, silk scarves and earrings by Karen Quam Russell. North End Gallery, 41625 Fenwick St., Leonardtown. Free. 301-475-3130 or webmaster@northendgallery.org.

JOHN MORRELL -- 11 a.m.-4 p.m. tomorrow-Sunday. "Under the Trees" is a show of landscape drawings and paintings by John Morrell. Mattawoman Creek Art Center at Smallwood State Park, Sweden Point Road, Marbury. Free. 301-743-5159 or www.mattawoman.org.

PASTELS EXHIBIT -- Noon-5 p.m. Mondays and Wednesdays, 3:30-7 p.m. Tuesdays, Thursdays and Fridays, and one hour before CSM performances, through Nov. 8. View "Urban Landscapes: Pastels by Jan Knipe." Fine Arts Center, College of Southern Maryland, La Plata campus, 8730 Mitchell Rd. Free. 301-934-7828, 301-870-3008 or 301-884-8131, Ext. 7828.

Film

"POLTERGEIST" -- 6:30-9:30 p.m. tomorrow. Costumes are optional for a scary movie, popcorn and prizes for teens. Calvert Library, 30 Duke St., Prince Frederick. Free. 410-535-0291 or 301-855-1862.

For Children HALLOWEEN STORIES -- 6:30 p.m. today at Fairview Branch Library, 8120 Southern Maryland Blvd., Owings. Free. 410-257-2101.

HAUNTED STAGE -- 5-7 p.m. tomorrow. Children age 8 and older are invited to a haunted stage presented by the Student Government Association and the Theatre Club. There will also be trick-or-treating, food, crafts, games, caricatures, music and a costume contest in the CC Building lobby and cafeteria. Fine Arts Center Theatre, College of Southern Maryland, La Plata campus, 8730 Mitchell Rd. $5. Tickets for games, crafts and food cost $.25 each. 301-934-7828, 301-870-3008 or 301-884-8131, Ext. 7828.

YOUNG SALTS -- 10 a.m.-noon Saturday. Presentation plus snack and craft for children ages 4-6. Advance registration required. Calvert Marine Museum, Route 4, Solomons. $10; members, $8. 410-326-2042, Ext. 45.

MONSTERS INC. PARTY -- 10:30 a.m. Wednesday. Come in costume to receive a prize pack and take part in terrifying activities. Borders, 3304-A Crain Hwy., Waldorf. Free. 301-705-6672.

MONSTER MASH CRUISE -- 4:30-5:30 p.m. next Thursday. Advance reservations are required for a children's costume cruise aboard the Wm. B. Tennison. Calvert Marine Museum, Route 2/4, Solomons. Adults, $5; children 5-12, $3; under 5, $2. 410-326-2042, Ext. 32, or www.calvertmarinemuseum.com.

Lectures and Literature "ST. MARY'S COUNTY'S GHOSTLY VOICES" -- 7 p.m. today. The St. Mary's County Reading Room and Debating Society Lecture Series continues with a talk on the paranormal in St. Mary's by Michael Humphries, who will share his paranormal experiences and recordings from his visitations at known haunted locations in the county. No children allowed. Reservations are recommended. Leonardtown Town Hall, 41680 Tudor Pl., Leonardtown. $20. 301-769-2222.

MUSEUMS, COMMUNITY AND IDENTITY -- 4:15 p.m. today. A lecture by Richard Handler of the University of Virginia will be followed by a reception. Daugherty-Palmer Commons, St. Mary's College of Maryland, 18952 E. Fisher Rd, St. Mary's City. Free. 240-895-4380 or 240-895-2095.

"WHY PEOPLE BELIEVE WEIRD THINGS" -- 7:30 p.m. Tuesday. A lecture by Michael Shermer from Skeptic Magazine. St. Mary's Hall, St. Mary's College of Maryland, 18952 E. Fisher Rd, St. Mary's City. Free. 240-895-4380 or 240-895-2095.

Sports and Recreation GREAT PUMPKIN RUN -- 7 a.m. Saturday. Participate in a one-mile run. Cove Point Park, Cove Point Road, Lusby. $3. 410-586-1101.

PET WALK -- 10 a.m.-2 p.m. Sunday. A pet walk for the Calvert Animal Welfare League raises funds for the league's adoption center. There will also be prizes for walkers donating $20 or more, dog training demonstrations, a blessing of the animals and an animal parade. Annmarie Garden, Dowell Road, Solomons. No minimum donation. 410-535-9300 or www.chesapeake.net/cawl.

MARYLAND INTERNATIONAL RACEWAY -- Tomorrow, 6:30-10 p.m. time runs and 10 p.m. eliminations for Midnight Madness; Saturday, 10 a.m.-1:30 p.m. time runs and qualifying; 2 p.m. eliminations for the Mopar Eastern Classic; Sunday, 10 a.m.-2 p.m. time runs and qualifying; 3 p.m. eliminations for the Fall Big Rig Truck Nationals. Tomorrow, $8; Saturday, $12; Sunday, $18; children, free. 27861 Budds Creek Rd., Budds Creek. 301-449-7223 or mirdrag.com.

SOLOMONS TOURS -- 10:30 a.m.-4 p.m. Tuesdays-Saturdays, 2-4 p.m. Sundays, through Oct. 31. Make an appointment for a two-hour guided walking tour of Solomons Island. $10; seniors, $7; students, $5; children 5 and younger, free. 410-394-0775 or www.solomonswalkabout.com.

Theater PORT TOBACCO PLAYERS -- 3 and 8 p.m. tomorrow and Saturday. "Vaudeville Show," the company's touring show featuring comedy, music and dance, is featured on the main stage for one weekend only. Port Tobacco Players Theater, 508 Charles St., La Plata. $12; seniors and students, $10. 301-932-6819.

Miscellaneous CIVIL WAR GHOST WALK -- 7-10 p.m. tomorrow and Saturday. Rain or shine. A ghost walk includes historical reenactments of the Civil War period. Games, hayrides and food will also be available. Advance reservations required. Point Lookout State Park, Route 5, Scotland. $5. 301-872-5688.

IZAAK WALTON GHOST WALK -- 6:30-9:30 p.m. tomorrow and Saturday. Sponsored by the Izaak Walton League. Izaak Walton Farm, 4200 Gardiner Rd., Waldorf. $5. 301-932-9949.

HALLOWEEN ON THE SQUARE -- 1-4 p.m. Saturday. Bring your trick-or-treaters for a costume parade, haunted house, face painting, stories, scarecrow making, a monster mash dance, oyster scald and more. Trick-or-treating takes place 3-4 p.m. The Square, Leonardtown. Free. 301-997-1604 or 301-475-9791.

LEGENDS OF THE NIGHT -- 7-9 p.m. tomorrow. Learn the legends and truths about nocturnal animals on a night hike with a park ranger. Reservations are required, and the program may not be suitable for young children. Kings Landing Park, Kings Landing Road, Huntingtown. $3; Battle Creek Nature Education Society members, $1. 410-535-2661 or www.calvertparks.org.

BUGS FOR DINNER? -- 7 p.m. Saturday. Bring a blanket or lawn chairs for a campfire program about bats. Marshmallows will be provided. Reservations are required. Battle Creek Cypress Swamp, Gray's Road, Prince Frederick. $3; Battle Creek Nature Education Society members, $1. 410-535-5327, 800-735-2258 (TDD) or www.calvertparks.org.

WILD AUCTION -- 7 p.m. Saturday. Bid on items like a kayak fishing trip, birdhouses, art and more to benefit the new Environmental Education Center at Flag Ponds Nature Park. Reservations are suggested. Battle Creek Cypress Swamp, Grays Road, Prince Frederick. Free. 410-535-5327, 800-735-2258 (TDD) or www.calvertparks.org.

WEEKLY AUCTIONS -- 6 p.m. Fridays. Chesapeake Auction House, 5015 St. Leonard Rd., St. Leonard. Free. 410-586-1161, 800-286-0033 or www.chesapeakeauctionhouse.com.

Plan Ahead

STARMAKER ART AUCTION -- 6:45 p.m. preview; 7:30 p.m. auction Nov. 1. Marlin Art Inc. will coordinate a live auction of art in a variety of media including limited edition lithographs and autographed sports card art. Proceeds benefit Starmaker Learning Center. Chancellors Run Regional Park Activity Center, Chancellors Run Road, Great Mills. $10; couple, $15. 301-863-7740.

STEP-BY-STEP 5K -- 9 a.m. Nov. 2. Calvert Alliance Against Substance Abuse holds a fun run/walk honoring Mike Blackwell, a marathon runner who was killed in January 2001 while running on Broomes Island Road. A portion of the proceeds will be donated to the Mutual Elementary School Playground Fund. Calvert Marine Museum, Route 2/4, Solomons. In advance, $20; children 10 and younger, $10; day of race, $25. 410-535-3733.

CHRYSANTHEMUM FESTIVAL TRIP -- Nov. 7. Registration is required by next Thursday to take a bus trip with the Calvert County Cultural Arts Council to Longwood Gardens for an indoor display of 20,000 chrysanthemums followed by tea in the Terrace Restaurant. $70; council members, $65. 410-257-7005.

CRAFTERS WANTED -- 9 a.m.-2 p.m. Nov. 23. The Indian Head Volunteer Fire Department Ladies Auxiliary is seeking crafters for its Christmas Craft Fair. Indian Head Fire Department, 4095 Indian Head Hwy. 301-753-9722 or 301-743-7203.

-- Carrie Donovan

The Southern Maryland Extra Entertainment Calendar lists events as space permits. Mail announcements and photos -- noting date, time, address, cost and phone number -- to Carrie Donovan, Southern Maryland Extra, The Washington Post, 1150 15th St. NW, Washington, D.C. 20071. You may also e-mail announcements to donovanc@washpost.com or fax them to 202-334-5417. Deadline is 14 days before publication.